69 Dart disc brake swap??

My son and I are getting ready to perform a disc brake swap on his 69 Dart (his first car). I have a couple of questions I was hoping someone could answer for us.
Our car is a 69 Dart with drums/drums.
The donor car is a 73 Dart disc/drum.
We were able to get all the parts from the donor car except the master cylinder and distribution block.
My questions are:
1. Can we use the original 69 distribution block if we put in an adjustable proportioning valve from Summit between the distribution block and rear drums?
2. Can we use the original 69 master cylinder or do we need to buy a replacement from a 73 Dart that had disc/drums?
We appreciate any and all help, Thanks.
Author: admin